Add Yahoo as a preferred source to see more of our stories on Google. New experiments have shown that the core of Mars formed much faster than Earth's core, thanks to molten iron and nickel sulfides ...

NASA’s Psyche spacecraft, the first mission ever sent to a metal-rich asteroid, is crossing billions of kilometers of space to answer a single high-stakes question: Is asteroid 16 Psyche the exposed, ...

Astronomers have spotted a distant star system that could offer a preview of Earth's future. It's a white dwarf star with a destroyed planetary core spinning around it. Share on Facebook (opens in a ...